package com.hellniu.hibernate;

import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;

/**
 * Data access object (DAO) for domain model class Hnuser.
 * 
 * @see com.hellniu.hibernate.Hnuser
 * @author MyEclipse Persistence Tools
 */

public class HnuserDAO extends BaseHibernateDAO {
    private static final Log log = LogFactory.getLog(HnuserDAO.class);

    // property constants

    public void save(Hnuser transientInstance) {
        log.debug("saving Hnuser instance");
        try {
            // @by tonyy, commit self
            getSession().beginTransaction().begin();
            
            getSession().save(transientInstance);
            
            getSession().beginTransaction().commit();
            
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }

    public void delete(Hnuser persistentInstance) {
        log.debug("deleting Hnuser instance");
        try {
            getSession().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }

    public Hnuser findById(com.hellniu.hibernate.HnuserId id) {
        log.debug("getting Hnuser instance with id: " + id);
        try {
            Hnuser instance = (Hnuser) getSession().get(
                    "com.hellniu.hibernate.Hnuser", id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }

    public List findByExample(Hnuser instance) {
        log.debug("finding Hnuser instance by example");
        try {
            List results = getSession().createCriteria(
                    "com.hellniu.hibernate.Hnuser").add(
                    Example.create(instance)).list();
            log.debug("find by example successful, result size: "
                    + results.size());
            return results;
        } catch (RuntimeException re) {
            log.error("find by example failed", re);
            throw re;
        }
    }

    public List findByProperty(String propertyName, Object value) {
        log.debug("finding Hnuser instance with property: " + propertyName
                + ", value: " + value);
        try {
            String queryString = "from Hnuser as model where model."
                    + propertyName + "= ?";
            Query queryObject = getSession().createQuery(queryString);
            queryObject.setParameter(0, value);
            return queryObject.list();
        } catch (RuntimeException re) {
            log.error("find by property name failed", re);
            throw re;
        }
    }

    public List findAll() {
        log.debug("finding all Hnuser instances");
        try {
            String queryString = "from Hnuser";
            Query queryObject = getSession().createQuery(queryString);
            return queryObject.list();
        } catch (RuntimeException re) {
            log.error("find all failed", re);
            throw re;
        }
    }

    public Hnuser merge(Hnuser detachedInstance) {
        log.debug("merging Hnuser instance");
        try {
            Hnuser result = (Hnuser) getSession().merge(detachedInstance);
            log.debug("merge successful");
            return result;
        } catch (RuntimeException re) {
            log.error("merge failed", re);
            throw re;
        }
    }

    public void attachDirty(Hnuser instance) {
        log.debug("attaching dirty Hnuser instance");
        try {
            getSession().saveOrUpdate(instance);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }

    public void attachClean(Hnuser instance) {
        log.debug("attaching clean Hnuser instance");
        try {
            getSession().lock(instance, LockMode.NONE);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }
}